ARDUINO TEST PANEL
 
- suitable to Arduino Uno or its equivalent models 
- two potentiometers connected to A0 and A1
- two push buttons connected to D11 and D12
- two LEDs connected though 1k resistors to D9 and D10
- two outputs to a 9g servo connected to D5 and D6 (pinhead output)
- terminal to connect external 5V supply
- power supply polarity protection
- two terminals to connect I2C devices
- two terminals to connect serial devices to Rx and Tx pins as Bluetooth or HC-12
- double row pinhead male socket to all in/out pins